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Google Gemini API

✓ Verified

Access Gemini 3 Flash (~78% SWE-bench at $0.50/$3), 3.1 Pro, and the full Gemini model family

Updated Feb 27, 2026
API/SDK ToolPay-per-useWebAll platforms via API
Last reviewed: Feb 27, 2026Details verified against vendor changelogs and hands-on usage where possible.

About

The Gemini API exposes Google's full model lineup including Gemini 3 Flash (~78% SWE-bench at $0.50/$3 per MTok, the best price-performance coding model available), Gemini 3.1 Pro Preview (released Feb 19, 2026, at $2/$12), Gemini 2.5 Pro ($1.25/$10), and Gemini 2.5 Flash ($0.30/$2.50). All models support 1M token context windows, multimodal inputs (text, image, audio, video), and tools including function calling, code execution, Google Search grounding ($14 per 1K queries), URL context, and computer use. Google AI Studio provides free prototyping with Build Mode for rapid app development.

Key Features

  • ✓Gemini 3 Flash: ~78% SWE-bench at $0.50/$3 per MTok (best price-performance)
  • ✓Gemini 3.1 Pro Preview: latest flagship (Feb 19, 2026)
  • ✓1M token context windows across all models (largest in the industry)
  • ✓Google AI Studio: free prototyping with Build Mode for app development
  • ✓Multimodal inputs: text, image, audio, video with up to 1-hour video analysis
  • ✓Tools: function calling, code execution, Google Search grounding, URL context, computer use
  • ✓Google Search grounding at $14 per 1,000 queries
  • ✓Live streaming API with tool use for real-time applications
  • ✓Batch API (discounted), context caching, and OpenAI-compatible SDKs
  • ✓SDKs for Python, JavaScript/TypeScript, Go, and Java

Pros & Cons

Pros

  • Free tier available
  • Broad integrations (4+ connectors)
  • SSO available for enterprise

Cons

  • No BYOK; model choice dictated by vendor
  • Cloud-only; no local/offline option

Use Cases

  • →Budget coding with Gemini 3 Flash (~78% SWE-bench at $0.50/$3 per MTok)
  • →Long-context analysis with 1M-2M token windows
  • →Multimodal AI applications with text, image, audio, and 1-hour video inputs
  • →Rapid prototyping with Google AI Studio and Build Mode
  • →Grounded responses using Google Search ($14/1K queries)
  • →Batch processing and context caching for cost-sensitive workloads
  • →Live API streaming with tool use for real-time applications

Technical Details

Languages

PythonJavaScript/TypeScriptGoJavaREST

AI Models

Gemini 3.1 Pro (preview)Gemini 3 FlashGemini 3 Pro (preview)Gemini 2.5 ProGemini 2.5 FlashGemini 2.5 Flash-Lite

Integrations

Google AI StudioVertex AI (Enterprise)FirebaseOpenAI-compatible endpoints

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Frequently Asked Questions

What is Google Gemini API?

The Gemini API exposes Google's full model lineup including Gemini 3 Flash (~78% SWE-bench at $0.50/$3 per MTok, the best price-performance coding model available), Gemini 3.1 Pro Preview (released Feb 19, 2026, at $2/$12), Gemini 2.5 Pro ($1.25/$10), and Gemini 2.5 Flash ($0.30/$2.50). All models support 1M token context windows, multimodal inputs (text, image, audio, video), and tools including function calling, code execution, Google Search grounding ($14 per 1K queries), URL context, and computer use. Google AI Studio provides free prototyping with Build Mode for rapid app development.

How much does Google Gemini API cost?

Google Gemini API offers pay-per-use pricing. Plans include: Free (Google AI Studio): $0, Gemini 3.1 Pro Preview: $2 / 1M input, $12 / 1M output, Gemini 3 Flash: $0.50 / 1M input, $3 / 1M output, Gemini 2.5 Pro: $1.25 / 1M input, $10 / 1M output, Gemini 2.5 Flash / Flash-Lite: Flash: $0.30/$2.50 | Flash-Lite: $0.10/$0.40 per MTok. A free tier is available.

What programming languages does Google Gemini API support?

Google Gemini API supports 5+ programming languages including Python, JavaScript/TypeScript, Go, Java, REST.

What AI models does Google Gemini API use?

Google Gemini API is powered by Gemini 3.1 Pro (preview), Gemini 3 Flash, Gemini 3 Pro (preview), Gemini 2.5 Pro, Gemini 2.5 Flash, Gemini 2.5 Flash-Lite.

What platforms does Google Gemini API support?

Google Gemini API is available on Web, All platforms via API.

What can Google Gemini API do?

Google Gemini API provides code completion, code generation, debugging, AI chat, agentic/autonomous mode. Key features include: Gemini 3 Flash: ~78% SWE-bench at $0.50/$3 per MTok (best price-performance), Gemini 3.1 Pro Preview: latest flagship (Feb 19, 2026), 1M token context windows across all models (largest in the industry).

Workflow Resources

Cookbook

Gemini API tool-grounding workflow for coding assistants

Design a grounded coding assistant using Gemini API tools, explicit context retrieval, and deterministic response formatting.

Visit Google Gemini API →

Pricing and features change frequently—confirm on the vendor site.

We may earn a commission if you sign up. See our disclosure.

Pricing

Free (Google AI Studio)

$0

  • Limited access to select models
  • Google AI Studio prototyping
  • Build Mode for app development

Gemini 3.1 Pro Preview

$2 / 1M input, $12 / 1M output

  • Latest flagship preview (Feb 19, 2026)
  • 1M token context
  • All tools and grounding

Gemini 3 Flash

$0.50 / 1M input, $3 / 1M output

  • ~78% SWE-bench Verified
  • 90.4% GPQA
  • Best price-performance for coding
  • 1M token context

Gemini 2.5 Pro

$1.25 / 1M input, $10 / 1M output

  • Strong all-rounder
  • 1M token context
  • 63.8% SWE-bench

Gemini 2.5 Flash / Flash-Lite

Flash: $0.30/$2.50 | Flash-Lite: $0.10/$0.40 per MTok

  • Ultra-budget options
  • 1M token context

Company

Name
Google
Founded
1998
Location
Mountain View, CA
Users
Millions of developers

Links

GitHub →Twitter →

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